Adolf Hitler opens the second Arbeitsschlacht (labor battle) at the Unterhaching Reichsautobahn construction site near Munich in front of around 10,000 people

© Photo credit: Illustrierter Beobachter - 7 April 1934
Adolf Hitler opens the second Arbeitsschlacht (labor battle) at the Unterhaching Reichsautobahn construction site near Munich in front of around 10,000 people